Title :
Characteristic improvement of a novel current observer based induction motor speed sensorless system
Author :
Tsuji, Mineo ; Xu, Fujin ; Tsuruda, Yasutaka ; Hamasaki, Shin-ichi ; Yamada, Eiji
Author_Institution :
Dept. of Electr. & Electron. Eng., Nagasaki Univ., Nagasaki, Japan
Abstract :
We have proposed a current observer-based induction motor speed sensorless vector control system which is composed in a rotating reference frame. The characteristic improvement of this system is discussed by taking into account iron loss, stator resistance identification, current low-pass filter and speed estimation low-pass filter. The stability of the system has been investigated by the trajectories of poles and zeros. The effectiveness of the proposed system has been investigated by digital simulation and experimentation.
Keywords :
electric current control; induction motors; observers; sensorless machine control; stability; velocity control; current low-pass filter; current observer; induction motor; sensorless vector control; speed control; speed estimation low-pass filter; stator resistance identification; system stability; Frequency estimation; Induction motors; Iron; Low pass filters; Machine vector control; Poles and zeros; Pulse width modulation; Stability; Stators; Zirconium; current observer; iron loss; parameter identification; sensorless vector control; stability analysis;
Conference_Titel :
Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-4986-6
Electronic_ISBN :
978-1-4244-7919-1
DOI :
10.1109/SPEEDAM.2010.5542401
